Double-ended box wrench



FIG. 1 is a perspective view of the double-ended box wrench showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is an end elevational view thereof;

FIG. 5 is a perspective view of the double-ended box wrench showing an alternate embodiment of my new design;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an end elevational view thereof.

The characterization feature of the design resides in the contour of the wrench heads thereof. 

The ornamental design for a double-ended wrench, as shown and described. 